1 /* $NetBSD: libkern.h,v 1.79 2008/03/25 23:24:38 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)libkern.h 8.2 (Berkeley) 8/5/94 32 */ 33 34 #ifndef _LIB_LIBKERN_LIBKERN_H_ 35 #define _LIB_LIBKERN_LIBKERN_H_ 36 37 #include <sys/types.h> 38 #include <sys/inttypes.h> 39 #include <sys/null.h> 40 41 #ifndef LIBKERN_INLINE 42 #define LIBKERN_INLINE static __inline 43 #define LIBKERN_BODY 44 #endif 45 46 LIBKERN_INLINE int imax __P((int, int)) __attribute__ ((unused)); 47 LIBKERN_INLINE int imin __P((int, int)) __attribute__ ((unused)); 48 LIBKERN_INLINE u_int max __P((u_int, u_int)) __attribute__ ((unused)); 49 LIBKERN_INLINE u_int min __P((u_int, u_int)) __attribute__ ((unused)); 50 LIBKERN_INLINE long lmax __P((long, long)) __attribute__ ((unused)); 51 LIBKERN_INLINE long lmin __P((long, long)) __attribute__ ((unused)); 52 LIBKERN_INLINE u_long ulmax __P((u_long, u_long)) __attribute__ ((unused)); 53 LIBKERN_INLINE u_long ulmin __P((u_long, u_long)) __attribute__ ((unused)); 54 LIBKERN_INLINE int abs __P((int)) __attribute__ ((unused)); 55 56 LIBKERN_INLINE int isspace __P((int)) __unused; 57 LIBKERN_INLINE int isascii __P((int)) __unused; 58 LIBKERN_INLINE int isupper __P((int)) __unused; 59 LIBKERN_INLINE int islower __P((int)) __unused; 60 LIBKERN_INLINE int isalpha __P((int)) __unused; 61 LIBKERN_INLINE int isdigit __P((int)) __unused; 62 LIBKERN_INLINE int isxdigit __P((int)) __unused; 63 LIBKERN_INLINE int toupper __P((int)) __unused; 64 LIBKERN_INLINE int tolower __P((int)) __unused; 65 66 #ifdef LIBKERN_BODY 67 LIBKERN_INLINE int 68 imax(int a, int b) 69 { 70 return (a > b ? a : b); 71 } 72 LIBKERN_INLINE int 73 imin(int a, int b) 74 { 75 return (a < b ? a : b); 76 } 77 LIBKERN_INLINE long 78 lmax(long a, long b) 79 { 80 return (a > b ? a : b); 81 } 82 LIBKERN_INLINE long 83 lmin(long a, long b) 84 { 85 return (a < b ? a : b); 86 } 87 LIBKERN_INLINE u_int 88 max(u_int a, u_int b) 89 { 90 return (a > b ? a : b); 91 } 92 LIBKERN_INLINE u_int 93 min(u_int a, u_int b) 94 { 95 return (a < b ? a : b); 96 } 97 LIBKERN_INLINE u_long 98 ulmax(u_long a, u_long b) 99 { 100 return (a > b ? a : b); 101 } 102 LIBKERN_INLINE u_long 103 ulmin(u_long a, u_long b) 104 { 105 return (a < b ? a : b); 106 } 107 108 LIBKERN_INLINE int 109 abs(int j) 110 { 111 return(j < 0 ? -j : j); 112 } 113 114 LIBKERN_INLINE int 115 isspace(int ch) 116 { 117 return (ch == ' ' || (ch >= '\t' && ch <= '\r')); 118 } 119 120 LIBKERN_INLINE int 121 isascii(int ch) 122 { 123 return ((ch & ~0x7f) == 0); 124 } 125 126 LIBKERN_INLINE int 127 isupper(int ch) 128 { 129 return (ch >= 'A' && ch <= 'Z'); 130 } 131 132 LIBKERN_INLINE int 133 islower(int ch) 134 { 135 return (ch >= 'a' && ch <= 'z'); 136 } 137 138 LIBKERN_INLINE int 139 isalpha(int ch) 140 { 141 return (isupper(ch) || islower(ch)); 142 } 143 144 LIBKERN_INLINE int 145 isdigit(int ch) 146 { 147 return (ch >= '0' && ch <= '9'); 148 } 149 150 LIBKERN_INLINE int 151 isxdigit(int ch) 152 { 153 return (isdigit(ch) || 154 (ch >= 'A' && ch <= 'F') || 155 (ch >= 'a' && ch <= 'f')); 156 } 157 158 LIBKERN_INLINE int 159 toupper(int ch) 160 { 161 if (islower(ch)) 162 return (ch - 0x20); 163 return (ch); 164 } 165 166 LIBKERN_INLINE int 167 tolower(int ch) 168 { 169 if (isupper(ch)) 170 return (ch + 0x20); 171 return (ch); 172 } 173 #endif 174 175 #define __NULL_STMT do { } while (/* CONSTCOND */ 0) 176 177 #ifdef NDEBUG /* tradition! */ 178 #define assert(e) ((void)0) 179 #else 180 #ifdef __STDC__ 181 #define assert(e) (__predict_true((e)) ? (void)0 : \ 182 __kernassert("", __FILE__, __LINE__, #e)) 183 #else 184 #define assert(e) (__predict_true((e)) ? (void)0 : \ 185 __kernassert("", __FILE__, __LINE__, "e")) 186 #endif 187 #endif 188 189 #ifdef __COVERITY__ 190 #ifndef DIAGNOSTIC 191 #define DIAGNOSTIC 192 #endif 193 #endif 194 195 #ifndef DIAGNOSTIC 196 #define _DIAGASSERT(a) (void)0 197 #ifdef lint 198 #define KASSERT(e) /* NOTHING */ 199 #else /* !lint */ 200 #define KASSERT(e) ((void)0) 201 #endif /* !lint */ 202 #else /* DIAGNOSTIC */ 203 #define _DIAGASSERT(a) assert(a) 204 #ifdef __STDC__ 205 #define KASSERT(e) (__predict_true((e)) ? (void)0 : \ 206 __kernassert("diagnostic ", __FILE__, __LINE__, #e)) 207 #else 208 #define KASSERT(e) (__predict_true((e)) ? (void)0 : \ 209 __kernassert("diagnostic ", __FILE__, __LINE__,"e")) 210 #endif 211 #endif 212 213 #ifndef DEBUG 214 #ifdef lint 215 #define KDASSERT(e) /* NOTHING */ 216 #else /* lint */ 217 #define KDASSERT(e) ((void)0) 218 #endif /* lint */ 219 #else 220 #ifdef __STDC__ 221 #define KDASSERT(e) (__predict_true((e)) ? (void)0 : \ 222 __kernassert("debugging ", __FILE__, __LINE__, #e)) 223 #else 224 #define KDASSERT(e) (__predict_true((e)) ? (void)0 : \ 225 __kernassert("debugging ", __FILE__, __LINE__, "e")) 226 #endif 227 #endif 228 /* 229 * XXX: For compatibility we use SMALL_RANDOM by default. 230 */ 231 #define SMALL_RANDOM 232 233 #ifndef offsetof 234 #define offsetof(type, member) \ 235 ((size_t)(unsigned long)(&(((type *)0)->member))) 236 #endif 237 238 #define MTPRNG_RLEN 624 239 struct mtprng_state { 240 unsigned int mt_idx; 241 uint32_t mt_elem[MTPRNG_RLEN]; 242 uint32_t mt_count; 243 uint32_t mt_sparse[3]; 244 }; 245 246 /* Prototypes for non-quad routines. */ 247 /* XXX notyet #ifdef _STANDALONE */ 248 int bcmp __P((const void *, const void *, size_t)); 249 void bcopy __P((const void *, void *, size_t)); 250 void bzero __P((void *, size_t)); 251 /* #endif */ 252 253 /* Prototypes for which GCC built-ins exist. */ 254 void *memcpy __P((void *, const void *, size_t)); 255 int memcmp __P((const void *, const void *, size_t)); 256 void *memset __P((void *, int, size_t)); 257 #if __GNUC_PREREQ__(2, 95) && (__GNUC_PREREQ__(4, 0) || !defined(__vax__)) 258 #define memcpy(d, s, l) __builtin_memcpy(d, s, l) 259 #define memcmp(a, b, l) __builtin_memcmp(a, b, l) 260 #endif 261 #if __GNUC_PREREQ__(2, 95) && !defined(__vax__) 262 #define memset(d, v, l) __builtin_memset(d, v, l) 263 #endif 264 265 char *strcpy __P((char *, const char *)); 266 int strcmp __P((const char *, const char *)); 267 size_t strlen __P((const char *)); 268 char *strsep(char **, const char *); 269 #if __GNUC_PREREQ__(2, 95) 270 #define strcpy(d, s) __builtin_strcpy(d, s) 271 #define strcmp(a, b) __builtin_strcmp(a, b) 272 #define strlen(a) __builtin_strlen(a) 273 #endif 274 275 /* Functions for which we always use built-ins. */ 276 #ifdef __GNUC__ 277 #define alloca(s) __builtin_alloca(s) 278 #endif 279 280 /* These exist in GCC 3.x, but we don't bother. */ 281 char *strcat __P((char *, const char *)); 282 char *strncpy __P((char *, const char *, size_t)); 283 int strncmp __P((const char *, const char *, size_t)); 284 char *strchr __P((const char *, int)); 285 char *strrchr __P((const char *, int)); 286 287 char *strstr __P((const char *, const char *)); 288 289 /* 290 * ffs is an instruction on vax. 291 */ 292 int ffs __P((int)); 293 #if __GNUC_PREREQ__(2, 95) && (!defined(__vax__) || __GNUC_PREREQ__(4,1)) 294 #define ffs(x) __builtin_ffs(x) 295 #endif 296 297 void __kernassert __P((const char *, const char *, int, const char *)); 298 unsigned int 299 bcdtobin __P((unsigned int)); 300 unsigned int 301 bintobcd __P((unsigned int)); 302 u_int32_t 303 inet_addr __P((const char *)); 304 struct in_addr; 305 int inet_aton __P((const char *, struct in_addr *)); 306 char *intoa __P((u_int32_t)); 307 #define inet_ntoa(a) intoa((a).s_addr) 308 void *memchr __P((const void *, int, size_t)); 309 void *memmove __P((void *, const void *, size_t)); 310 int pmatch __P((const char *, const char *, const char **)); 311 u_int32_t arc4random __P((void)); 312 void arc4randbytes __P((void *, size_t)); 313 #ifndef SMALL_RANDOM 314 void srandom __P((unsigned long)); 315 char *initstate __P((unsigned long, char *, size_t)); 316 char *setstate __P((char *)); 317 #endif /* SMALL_RANDOM */ 318 long random __P((void)); 319 void mtprng_init32(struct mtprng_state *, uint32_t); 320 void mtprng_initarray(struct mtprng_state *, const uint32_t *, size_t); 321 uint32_t mtprng_rawrandom(struct mtprng_state *); 322 uint32_t mtprng_random(struct mtprng_state *); 323 int scanc __P((u_int, const u_char *, const u_char *, int)); 324 int skpc __P((int, size_t, u_char *)); 325 int strcasecmp __P((const char *, const char *)); 326 size_t strlcpy __P((char *, const char *, size_t)); 327 size_t strlcat __P((char *, const char *, size_t)); 328 int strncasecmp __P((const char *, const char *, size_t)); 329 u_long strtoul __P((const char *, char **, int)); 330 long long strtoll __P((const char *, char **, int)); 331 unsigned long long strtoull __P((const char *, char **, int)); 332 uintmax_t strtoumax __P((const char *, char **, int)); 333 #endif /* !_LIB_LIBKERN_LIBKERN_H_ */ 334